Printing-plate holder.



W. J. KNOLL.

PRINTING PLATE HOLDER.

APPLICATION FILED N0v.4,1908.

913,736. Patented Mar. 2, 1909.

numb 755372666 @C2 \Z' .172 den 0?? entran OFFQR WILLIAM J. KNOLL. OF OHOAGO; lLlilNOlASSIGNOR TO ll. B. ROUSE da COMPANY, OF CHICAGO, ILLINOIS, A (JORPORA'lION OF ILLINOIS.

PIMNTING-PLAQE HOLDER.

Specification of Lettere Patent.

Patented March 2, 190e.

Application led November a, 1998 Serial No. xlol,097.

y To alllvhom it may concern:

Be it lmo'vn that l, WiLLiAn J. Kanu., citizen of the United States, residing at Chicago, in the county ot Coeli; and Stato el Illinois, have invented a certain new .md

.useful Improvement in Printing-Plate Holders, of which the following isI a hdlgclear, concise, and exact description, ret ence being'had to the accompanying drawings, forming a part ol this specification.

My invention relates to that class or' print ingplate holders which employ 'traveling jaws and gearing tor effecting the trawl ol? the jaws and preferably accessible through apertures formed in the jaws transversely tothe lineof jaw travel.

holder which includes a traveling plute holding jaw, a threaded element extending substantially parallel with the direction cl travel of the jaw, a rotatable element in cngageruentwith the threaded element, whereby the rotatable element is caused to :.ulvance or recede, according to the direction ol" rotation of the rotatable element, iu directions substantially parallel with the threaded elenient,'sa id plate-holding jaw and rotatable element having-engagement which permits the rotatable element to turn with respect to the jaw, but forces the jaw 'to nieve back and lortu as the rotatable element nuwos back and forth, said jaw being fuicrtured "transversely to the line of travel ol" thc jaw tion may be generally described to permit of theapplication el' operating force theretnrougli to the rotating clement.

The preferred embodiment ol my invenas comprising a printing plate holder which includes a traveling plate-holding jaw, ,a threaded ele` ment extending substantially parallel with the direction of travel ol the jaw, a rotatable The advantages ,ot such printing late holders are too well 'known to those silled 1n the art to require element in engagement with the threaded element and co-axi al therewith, whereby the rotatable clement is caused to advance or recede', according to the direction of rotation oi the rotatable element, in directions substantially parallel with the threaded element, said ypilatcdiolding jaw and rotatable clement having engagement which permits `the rotatable element to turn with respect to the ,ia-w, but iorccs the jaw to move back and forth as the rotatable element moves back and lorth, said jaw being apertured transversely 'to thc line of travel of the jaw to permit of the application ot' operatmg force tnere- Y through to the rotating element, a gear wheel carried by the rotatable element and co-axial therewith, a second gear wheel in liu-sh with the lirst and carried by the jaw and accessible to an operating tool lnsertible through thc'aperture 1n the Jaw, the axis ol the second gear Wheel being in alineinent with the aperture in the jaw that is transverse to the direction olV travel of the jaw, and a block adapted to be inserted in a late foundation and carrying said threade' element and also supporting the traveling jaw in its travel.

The rotatable element may be provided with a bore in threaded engagement .with a stalionm'y threaded shaft or it may be in the lo'rm el a .head lixed upon a rotatable and longitudinally movable threaded shaft or the rotatable element may have its periphery in threaded engagement with threads within the barrel-like recess in the block structure.

l'Vhile l prefer to employ an aperture formed I nr the jaw and extending transversely to the lino ot' travel, l do not wish to be limited to this embodiment of my invention.

l' will explain my invention more fully by reference to the accompanying drawing, in

Figure 1 is an end View ol a device made in accordance with one embodiment of the in-` vention. Fig. 2 is a sectional view on line 2 2 ol Fig. l. Fig. 3 is asectional View on line 3 3 oli Fig. 2. Fig. 4 is a bottom View of the 'traveling jaw structure. Fig. 5 is a sectional view on line 5 5 of Fig. 2. Fig. 6 isa view of another embodiment of the invcntion in which the rotatable clement is in 'Fixed relation with a threaded shaft which is in threaded engagement with a portion of the block structure and is kada )ted te move baci; andforthwithrelation thereto as the .block to permit of the mechanica interrelation of parts within the barrel-like recess and parts above the barrel-like recess, irrespective of the positions which the traveling j aw structure, hereinafter to be described,may occupy. The block a is, as has been stated, provided with an opening at its top portion that permits of ineohanical intei-ielation of parts Within the barrel-like recess and parts outside of said barrelsliire recess, the longitudinal margins oiA this opening being prou surface oi the block.

vided with grooves c which receive tongues d projecting laterally from thebase e or" the jaw, thereby to confine the jaw in its proper travel and to hold it in proper relation to the block. The aw portion f which is directly to engage the plate, is carried upon the jawbase e and is shown as being in pivotal relation therewith, but tol which relationship l do not wish to be limited. The portion f of the jaw structure overlies the block structure a, the upper surface of the base e being desirably, though not necessarily, flush with the upper The jaw base e is provided with a downwardly extending projection g which has such engagement with the rotating wheel or element t as will permit said element to rotate without having any rotating eort exerted upon the jaw base, but which engagement will force the movement of said projection together with the parts that are mechanically connected therewith in a straight line of travel parallel with the straigh line movement of said rotating` whee While l prefer the employment of the projection g for the purpose of maintaining the engagement prescribed with the wheel h, I do not wish to be limited thereto. Where. the projection g is employed, it is `caused to enter a peripheral recess t inthe Wheel h, so that the traveling jaw structure is bound to move forward or bach, according ,to the forward o1' back movement oi said wheel. The rotating element 71y is in threaded engagement with somethreaded portion that extends substantially parallel with the y direction of travel of the jaw, and, in order that this rotating wheel or element 71/ may be u operated to the best advantage, I provide an aperture f1 in the jaw which is perpendiculai- With respect tothe axis of the rotating element 72 whereby the application of operat- 4:ling Vforce through the aw to the rotating elesienes ment it is permitted. ln thc pi'iierred embodiment oi the invention, l form a gear wheel l preferably integral with the wheel h and, therefore, having an axis coincident with the airis of said wheel h and coincident with the threaded portion of the structure that is in threaded engagement with said wheel 7L. A second gear wheel fm, which is provided beneath the jaw base e, is journaled upon said jaw base, the axis or' the wheel m being in alinement with the aperture f1 in the jaw. The hub oi the gear wheel mis provided with an aperture having angularly related walls and is located in alinement with the aperture f1, whereby the end of an operating tool 0. (Fig. d) shaped correspondingly to the aperture in the wheel m, may, upon being insorted in said aperture and thereafter turned,

eil'ect a rotation oi'i' the gear .wheel m, and thereby the rotation of the gear Wheel l,

`vrhich being lined with respect to the rotatby the tool inserted through the jaw to eiliect the travel of the jaw as desired.

in the embodiment oi the invention shown, the aperture f1 is partially filled by a tubular extension of the hub of the wheel m, the bore oi' said tubular extension permitting the passage of tho operating tool through the jaw and into operative engagement with the gear wheel m.

The specific description so far given enibraces a l oi the embodiments of the invention illustrated. l will now describe the particulars in which the various embodiments ditler.

ln Figs. l to 5, inclusive, the rotating `wheeler element 7L is in the form of a nut having a threaded bore in threaded engagement with a normally stationary threaded shaft ln Fig. 6 the rotatable element is in fixed relation with a threaded shaft q which is in threaded engagement with an end wall portion of the block structure and is adapted to move back and forth with relation thereto as the threaded shaft is turned in one direction or the other by the turning movement imparted to it by the wheel l, the bodily movement of the rotating threaded shaft in one direction or the other effecting corresponding movement of the jaw. l-ii Fig. '7 l have shown a structure wherein the barrel portion is provided with jaw actuating element with the first ele- ,ment

claim as nei' and desire to secure by Letters element, -whereby the rotatable element is caus'e`d to advance or recede, according to '(55.

'changes may be made without departing .trom the spirit of the invention.

force the travel of the jaw upon rotation oi the Wheel h. ln all embodiments of the invention that I have illustrated, the axis ol the portion of the structure in threaded erm gagernent with the wheel h is parallel with the line of travel of the jaw and said axis is coincident with the axes of the elements )t and the gear Wheel l, while the axis ol' the Wheel m, which, as stated, is in alinelnent with theaperture f1, is transverse to the axis of the threadedportion in engagement with the Wheel It, the axis of the wheel m and said a erture f1 being desirably perpendicular to t e axis of the threaded portion in engagement with the element l1. .ln all el the illustrated embodiments olt my hweution, the only function of the gearing l and m is to ell feet the rotation of the element it, the purchaseoi the jaw being had upon the shaft lr, the shaft q or the threads r, as the ease may be, without the intervention ol the gearing Z and m. The gear wheels Z and 7a are desirabl f miter gear wheels, but l do not wish to be limited to ruiter gear wheels.

By Way of a general sunnnationit may be stated that my invention here disclosed includes a traveling plate-holding jaw, a gear element (which is the shaft er lthreaded bore, in the embodiments of the invention illustrated), a jawectnating element (such as the wheel lr) in engagement with said gear element and the plate-holding jaw, whereby as the j avv-actuating element is moved with respect to said gear element, the plate-hold ing jaw is caused to advance or recede, a second gear element (one of the bevel gear Wheels, in the embodiments oi the invention illustrated) moving with the jaw-antw ating element, and a third gear clement (the other of the bevel gear wheels) in engagementl With the second gear element and moving with the jaw and adapted to be operated by an operating tool, the plate-holding j aW having purchase upon the iirst gear element independently of the other-gear elements by reason or' the engagement of 'the While l have herein shown and particularly described the preferred embodiments of my invention, l do not Wish to be limited to the precise constructions illustrated, as

Having thus described my invention, l

latent the followinff:-

i. A printing late holder including a traveling plate-holding jaw, a threaded element extending substantially parallel with the direction of travel of the jaw, a rotatable element in engagement with the threadedthe direction of rotation ofthe rotatable ele n wie nient, in directions substantially parallel with the threaded element, said 'plate-holding jaw and rotatable element havin engagement which permits the iotatable element to turn with respect to the jaw, but forces the aw to move back and forth as the rotatable element moves back and forth, a gear wheel carried by the rotatable element, and a second gear wheel in mesh with the 'Iirst and moving with the law and accessible to an operating tool, the plate-holding jaw having purchase upon the threaded element independently ol" the gear wheels by reason of the engagement ol said rotatable element with said thrr ded element.

2. A printing plate holder including a traveling platediolding jaw, a threadedelenient extending substantially parallel with thedirection oi travel ol the aw, 'a rotatable element in engagement with the threaded element, whereby the rotatable element is caused to advance or recede, according to the direction ot rotation of the rotatable eleiuent, in directions substantially parallel with the threaded element, said late-holding jaw and rotatable element aving engagement which permits the rotatable elenrent to turn with respect to the jaw, but forces the jaw to move back and forth as the rotatable element moves back and forth, said jaw being apertnred transversely tothe line o l travel of the jawdo permit of the applica'tion of operatingr force therethrough to the rotating element, a gear wheel movin(T with the rotatable element, and a secon gear Wheel in mesh with the tirst and moving with the jaw and accessible to an operating tool insertible through the aperture in the jaw the plate-holding jaw having urchase upon the threaded element independently of the gear wheels by reason of the engagement of said rotatable element with said threaded element.

3. A printing plate holder including a travcling plate-holding jaw, a threaded element extending substantially parallel with the d irection of travel of the jaw, a rotatable elenient in engagement with the threaded element, whereby the rotatable element is. caused to advance or recede, vaccording to the direction of rotation of' the rotatable element, in directions substantiallvparallel with the threaded element, said ing jaw and rotatable element aving engagement which )ermits the rotatable element to turn witli respect to the jaw, but forces the jaw to nieve back and forth as the rotatable element moves back and forth, said jaw being apertured transversely to the line of travel of jthe jaw to permit of the application of operating force therethrough to the rotating element, a gear wheel moving with the rotatable element and co-axial therewith, and a second gear wheel in niesh with the iirst andinoving with the jaw and accessible to an operating tool insertible through the aperture in the jaw, the plateholding jaw havin purchase upon the threaded element independently of the gear Wheels by reason of the engagement of said rotatable element with said threaded element.

4. A printing late holder including a traveling plate-ho ding jaw, ment extending substantially parallel With the direction of travel of the javv7 a rotatable element vin engagement With the threaded element, whereby the rotatable element is caused'to advance or recede, according to the direction of-rotation ofthe rotatable element, in directions substantially parallel With the threaded element7 said plate-holding jaw and rotatable element having engagement which permits the rotatable elementl to turn With respect to the j aw, but forces the jaw to move back and forth las the rotatable element moves back and forth, said jaw beingapertured transversely to the line of travel of the jaw to ermit of the application of operating force t erethrough to the rotating element, a gear Wheel .moving with the rotatable element and co-axialtherewith, and a second gear Wheel in mesh With the lirst and moving With the jaw and accessible to an operating tool insertible through the aperture in the jaw, the axis of the second gear -Wheel being 1n vertical alinement With-the aperture in the jaw, the plate-holding jaw havingpurchase, u on the threaded element independently or the gear wheels by reason of the engagement of said rotatable element with said threaded element.

5. A printing plate holder including a.

traveling plate-holding jaw, a threaded element extending substantially parallel with the direction of travel of the jaw, a rotatablel element in engagement With the threaded ele- .ment, whereby the rotatable element is caused to advance or recede, according to the direction of rotation of the rotatable element7 in directions substantially parallel 4with the threaded element, said plate-holding jaw and rotatltble element having engagement which pernt's the rotatable element to turn with respect to the jaw, but forces the jaw to move back and forth as the rotatable elcment moves back and forth, said jaw being apertured transversely to the line of travel ofthe jaw to permit et' the application of operating force therethrough to the rotating element, a gear Wheel moving with the rotatable clement and co-aXial therewith, and a second gear wheel in inesh with the first and moving with the jaw and accessible to an operating tool insertible through the aperture'in the jaw, the axis of the second gear Wheel being in alinenient with the aperture in the jaw that is transverse to the direction of travel of the jaw, the plate-holding jaw having purchase upon the threaded element of the engagement of said rotatable element With said threaded element.

6. A printing plate holder including traveling plate-ho ding j aw, a threaded ele- ,ment, a rotatable element in engagement With the threaded element, whereby the ro tatable element'is caused to advance or recede, according to the direction of rotation of the rotatable element, said plate-holding jaw and rotatable element having engage ment which permits the rotatable element to turn with res ect to the jaw, but forces the jaw to move back and forth as the rotatable element moves back and forth, a gear wheel moving with the rotatable element, and a second gear Wheel in mesh with the first and moving with the jaw and accessi? e to an operating tool, the plate-holding jI having purchase upon the threaded elena.4

independently of the gear Wheels by reason of the engagement of said rotatable element lwith said threaded element.

late holder including traveling plate-ho ding jaw, a threaded element extending substantially 'parallel with the direction of travel of the jaw, a rotatable element in engagement with the threaded element, whereby the rotatable element is caused to advance or recede, according to the 7. A printing direction of rotation of the rotatable element, i,

in directions substantially parallel with the threaded element, said plate-holdling and rotatable element having engagement which permits the rotatable element to turn with respect to the jaw, but forces the jaw to move back and forth as the rotatable element moves back and forth, said jaw being ape;i tured transversely to the line of travel oi the jaw to permit of the application of operating force therethrough to the rotating element, a gear wheel moving with the rotatable ela ment, a second gear wheel in mesh with the irst and moving with the jaw and accessible to an operating tool insertible through the aperture in the jaw, the plate-holding jaw having purchase upon the threaded element independently of the gear Wheels by reason ofthe engagement oit' said rotatable elementA With said threaded element, and a block adapted to be inserted in a plate foundation and carrying said threaded element and also supporting' the traveling jaw in its travel.

8. lA printing plate holder including a traveling plate-holding jaw, a threaded element extending substantially parallel With the direction of travel of the jaw, a rotatable element in engagement with the threaded element, whereby the rotatable element is caused to advance or recede, according to the direction o1 rotation olE the rotatable element, in directions substantially parallel with the threaded element, said plate-holding jaw and rotatable element having engagement which permits the rotatable element to turn with independently of the gear wheels byreason l respect to thejaw, but forces the jaw to more lli? iso

tirarse back and forth as the rotatable element moves back and forth, said jaw being apex'1 tured transversely to the line ol travel of the jaw to permit of the application of operatingi force therethrough to the rotating' element, a gear wheel moving with the rotatable element and co-axial therewith, a second gear wheel 'in mesh with the first and moving with: the jaw and accessible to an operating `tool insertible through the aperture in the jaw, the plate-holding jaw having purchase u )on the threaded element independently ot' tlie gear Wheels by reason of the engagement of said rotatable element with said threaded element, and a block adapted to ,be inserted in a plate foundation and carrying said threaded element and also supporting the traveling jawin its travel.

9. A printing travelingplate-ho ment extending substantially parallel the direction of travel ot' the inw, a intatable element in engagement with the tlirraidcd element, whereby the rotatable element is caused t-o advance or recede, according lo the direction of rotation of the rotatable element, in directions substantially parallel plate holder including a ding jaw, a threaded ele- '.With the threaded element, said plate-hold ing` jaw'and rotatable element having: eiigae nient which perniits the rotatable element to turn with res reet to the jaw, but forces the jaw to move acl; and forth as the rotatable element moves back and lorth, sa id jaw lieiiuof aportured transversely to the line of travel of thej aw to permit ol' the application ot operaia-- ing; torce therethrough to the retailing le ment, a gear `wheel nun/'ine` with the rotaiablc'eleinent and cri-axial therewith, a second gear wheel in mesh with the first and morini;Y

Awith the jaw and accessible to an opereling' tool insertible through the aperture in the jaw, the axis olI the second gein' wher-.l lgieiiuij in veitical alinoment with the aperture in the jaw, the platedioldingI llaw haring purchase upon the tl'iriaded element indepeinlentljf ol: the gear wheels b v reason oll tl e eiipjagnment ofsaid` rotatable elementwith said threaded element, and a'blocl adapted to be iiisei'led in aplatefoundation and rairyiuf ed element and also supporting; t ie traveling jaw in its travel.

l0. A printing. plate holder including a traveling' plate-holding: jaw, :i threaded r-leA ment extendigjigg substantially parallel with the direction ot' travel of the jaw, a rotatable element in engagement with the threaded element, whereby the rotatable elenn-nt ifi caused to advance or recede, accordins;A to the direction of rotation ol' the rotatal le element, in direction substantiallyparallel with the threaded element, said plaro-holdingf jaw and rotatableelenient liaviiue, en :lalrenient which permits the 'rotatable element to turn with respect to the jaw, but lorces the inw to more back and forth as the rotatable eleinei'it with ioves boel; and forth, said jaw being :iper-- tured ti nsversely to the line of travel oi the jaw to permit of the application of operating force ti'iercthrough to the rotating ileirient, a gear wheel moving with the rotatable element and eo-axialtherewith, a second gear wheel in mesh with the first and moving with the law" and accessible to an operating' tool insertible through the aperture in 'the jaw, the airis oi the second gear wheel being; in alineineiit 'with the aperture in the jaw that is transverse to the direction ol travel of the jaw, the plate-hohliiig jaw having purchase upon. the threaded element independently of the gear whee by reason of the engagement oi said rotatable element with said threaded element, and a block adapted to be inserted in a plate lo oxidation and carrying saidthreiided elciiient and also supporting the traveling jaw in its travel.

'l l. )i painting plate holder including a 'traveling' philic-lioldirig jaw; threaded elemeiu eslendingr substantiallj,r parallel with the direction ol travel of the jaw, rotatable element iii engagement with the threaded clement, whereby the rotatable element ,is caused to advance or rec/,edel accordii'igto the dircctiiiu of rotation of the rotatable element, in directions substa itially parallel with the threaded element, said plate-liolding uw and rotatable element having` engagement which piilriiiits the rotatable element to turn ',b respect to the jaw, but forces the law to move bool; and l'ortli 'as the rotatable ecnient moves baclq und forth, said jaw bij-.ingA apertured transversely to the line ol 'fi-vel ol the jaw to permit ol` the application otoperating` l'oroe therethrough to the rotating` ele,- nient, a gear wheel moving' with the rotate bler elei'nent and io-axial therewith and with the threaded clement, and a second. gear wheel in mesh with the lirst and moving with the jaw and accessible to 'an operating tool insertible through the aperture in the jaw the platodiolding jaw having purchaseupon the lh laided elen'ient iiulependentl)r olx tho gear wheels by reason ol the engagement ol' said rotatable element with said threaded element.

l2. l printing` plate holder including a traveling plato-holding jaw, a threaded element extending` substantially parallel with the direction ol travel ol the jaw, a rotatable element in einragemeiit with the threaded l ehinienl', whereby the rotatable element is caused to advance or recede, accor(liiigto'. the dir/action oi" rotation of the rotatable elenient, in directionsl substantially parallel with the threaded element, said plalc-hohl- -ingg' jaw and rritaiable element lowingengagei'neiit which permits the rotatablelele ment to turn `with respect to the jaw', but forces the jaw `to move bac and lort'lmji-s the rotatable element inoves back and. forth, said jaw being apertnrcd transversely to the iii e line ot travel of the jew to Apermit oi the ap plication of operating force therethrough to the rotating element, a gear Wheel movin with the rotatable, element and co-axieJ therewith and vlitlil the threaded element, and a second gear wheel in ineen with 'the first and moving vvitli tlie jaw sind eccessible toV an operating tool insertible ,through the aperturein the jew, tbe exis tlie second Vgeez' ,Wheel bein in vertical alimentent with tile epertnre in t e jew the plate-holding jaw bovine` vpurchase upon tbe threaded element independently of the gear Wheels by reason of the engagement of seid rotatable element lwith seid threaded element.

13. A. printing plate holder including e traveling plete-holding jew, threaded ele ment extending substantially perl ll with the direction ot trevel oi the idw, ble element in engagement with tbe threaded element, whereby the rotatable element isA caused to edvence or recede, according to tbe direction oi rotation of the rotatable element, in directions substantially parallel with the threaded element, seid plete-holding jaw end rotatable element having engagement i permits the rotatable element to tu t th respect to the jet?, but forces tire ieri to move beck end forth as tlie vrotatable element moves beek and iortli, seid 3er-.f being l a ertured transversely to tbe line et travel of t e jaw toperrnit of tbe application. of operating force therethrough to tbe rotating element, a gear Wheel moving with tlie rotate-ble element and co--eiel tlierewitb. with the threaded element, and e second gear Wlieel in `mesli With tbe iirst moving with the jew f traveling plate-holding jew,y atln'eaded ele- -ment extending substantially parallel with the vdirection of travel of the jew, a rotetable l. element iny engagement 'with tbe threaded element, whereby tbe roteteble element is caused to advance or recede, according to the direction oi rotation oi tbe rotatable element, in directions substentiellv parallel with the tllreeded. element, seid. jelatediolding jaw end rotate-ble element noting engagernent which ermite tlie rotatable element to turn wit i' respect to tile law, but forces the 'aw to move back and "forth as the rotatable element moves back and forth, said jaw being aertu'red transversely to the line oi travel o the jaw to permit of the application of operating iorde therethrough to the rotating element, a geez' Wlieel moving rotatable element moves eieyee.

with tbe nfret2iblel element and co-axial therewith end with tbe threaded element, a second gear Wheel in mesh with the 'First and moving with the jew and accessible to on' operating tool insertible through the aperture in the jaw, tine pletediolding j ow having" purchase upon the threaded element independently ot the geel* Wheels by reason of tbe engagement of seid rotatable element #withA said 'threaded element, end a block cdapted to be inserted in e, plate foundation and eorrying seid threaded element and also supporting the traveling jaw in its travel.

l5. A printing. 1plete holder including a travelingv plate-holding jew, a threaded elenient extending substantially parallel ivi-tb the direction oi travel of the javv, a rotatable element in engagement with the threaded ele-nient, whereby tbe rotatable element is caused to advance or recede, according to tbe' direction, of rotation of the rotatable element, in directions substantially parallel Wit-li, the threaded element, said late-holdn ing jew and, rotatable element iiavin'g :enf gegement which 'lerlnits the rotatable 'ele-l ment to. turn Wit res ect to tbe jaw, but forces the jaw to move eokand iortli'es tbe rotatable element moves loaek-fand'fortb., A

seid jaw being apertur'ed trensverselylto the line of travel of the iaW to permit oiftlie op plicetion of operatingforee' therethrough to the rotating element, o gear Wheel. movin with the rotatable element; andvco-exie therewith and with the threeded element, e second gear Wheel in mesh with the Aiirst end moving with tlie jaw `end accessible to en operating o tool insertible through the aperture in the jaw, tbe axis of the second gear Wheel being iny vertical elinelnent. with tire aperture in the tbe plate-holding; jew 'having purchase upon the threaded element independently of 'tliegeer wheels by reason of the engagement 'of said rotatable elementA with said threaded element',A end e. block adapted to be 'inserted in a plete iodndation and carrying seid threaded element and also supporting the traveling jew in its travel.

16. A printing plete holderincluding a traveling pleteholding jew, a threaded element extending subste'ntiallyv vparallel vWitli the direction oi travel of tbe/few, a rotatable elementv in engagement Witli tbe threaded element, whereby the rotatable element is caused to advance or recede, accordingv to the .direction of rotation oi the rotatable element, in directionssubstantiell parallel Witli the threaded element, said plate-holding,` aw and rotatable element having enu gogernent which eirnits tlie rotatable element to turn Witll respect to the jow, but iorces the jaw to move beck and forth as they beclrand forth, eiertured transversely to the said jew being the jaw 'to permit o1 the line of travel .application of operating torce therethrough to'the rotating elementa gear Wheel nio ving with the rotatable element and co-axial therewith and with the threaded. element, a second gear wheel in mesh with the first and moving with the jaw and accessible to an operatm tool insertible through the aperture in= t 1e aw, the axis or the second fear Wheel: being in alinement with the aperture in the jaw that is transverse to the direction of travel of the jaw, the plate-holding jaw having purchase upon the 'threaded element independently of the gear Wheels by reason of the en agement of said rotatable element With .sai threaded element, and a block adapted to be inserted in plate lo'unilation and carrying said threaded element and also supporting the travelingl jaw in its travel.

17. A printing plate holdemincluding a traveling plate-holdingl jaw, an element oxtending substantially parallel with the direction of travel of the jaw, a rotatable elenient in yengagement with the first-named element, whereby the rotatable element is caused to advance or recede, according to the direction of rotation ol the rotatable element, in directions substantiallyy parallel with the lirstnamed element, said plate-holding jaw and rotatable element having engagement which permits the rotatable element to turn with respect to the jaw, but forces the jaw to move back and forth as the rotatable'eliment moves back and forth.' a gear wheel moving with the rotatable clement, and a second gear wheel in imesh with the lirst and moving'with the jaw and accessible to an operating tool, the plate-holdii y jaw having purchase upon the first-named element independently of the gear wheels by reason of the engagement of said rotatable clement with said lirst-named element.

18. A printing plate holder including a traveling plate-holding jaw, a threaded element extending substantially parallel with the direction of travel of the jaw, a rotatable element in engagement with the threaded element, whereby the rotatable element is caused to advance or recede, aceordinw to the direction of rotation. of the rotatable element, in directions substantially parallel with tho threaded element, said plato-holding j aw and rotatable element having engagement which permits the rotatable eleuient to turn with respect to the jaw, but 'torres vthe jaw" to move back and forth asthe rotatable ele men-t moves back and forth, said jaw boing a ertured transversely to the line ol travel of tie jaw to permit ol the applica tion ol operating force therethrough to the rota-ting clement, a gear Wheel moving' with the rotatable element, and a second gear wlny l, in mesh With the llirst and moving with the jaw and accessible to an operating tool" insertible through the 'aperture in the jaw, titre axis ot the second gear Wheel being in vertical aline* ment with the aperture in the jaw, the platelmlding jaw havinfr purchase upon the threaded element independently ol'. the gear Wheels by reason ol thel engagement of said mtatabie elen'ient with said threaded element.

lll). A. printing plate holder including a traveling plate-holding jaw, a threaded element extending substantially parallel with: the direction'ol" ltravel of the Aaw, a rotatable element in engagement with the threaded element, whereby the .rotatable element isy caused to advance or recede, according to thedircction of rotation ot the rotatable element, in directions substantially parallel with the threaded element, said plate-holding aw andr rotatable element having engagement which.

permits the rotatable element to turn with respect to the jaw, but forces the ,jaw to move back and forth as tho rotatable element moves back and forth, said jaw being apertured transversely to the line of travel of the jaw to pern'iit ot thc application of operating `torce therothri'iugh to the rotating element, a gear Wheel moving with the rotatable element, and a second gear wheel in mesh with the first and moving with the jaw andaecessible to an operating tool insel-trible through` the aperture in the jaw, the axis oi the second gear Wheel being in alinement with the aperture in the jaw that is transverse to the direction of travel of the aw, the plate-holding jaw having purchase upon the threaded eloment independently ot the gear wheels by reason of the engagement of said rotatable element with said threaded ell-unent.

20. A printing plate holder including a traveling plate-holding jaw, a gear element, a rotatable element .in engagement with the :first-named element, whereby the rotatable element is caused to advance or recede, according to the direction of rotation of the rotatable element, said platediolding jaw and rotatable element havmg engagement which permits the rotatable element to turnavith respect to the jaw, but forces the jaw to move back and forth as the rotatable element moves back and -forth, agear wheel moving with the rotatable element, and a second gear wheel in ine-sh with the 'lirst and moving with the jaw and accessible to an operating tool, the plate-holding jaw having purchase upon the tirst-named element independently y et' the gear wheels by reason ot the engagement of said rotatable element with said ."lirstenamed element.

131. A printing plate holder including a traveling plateholding ia-w, a threaded; element extending substantially lparallel with the direir ion ot travel of the raw, a rotatable element in engagement with the threaded clement, whereby the rotatable element is caused to advance or recede, according to the direction ol` rotation of the rotatable element, in directions substantially parallel with the den v51.)

threaded element, said plate-holding j aW and rotatable element having engagement which permits the rotatable element to turn with respect to the jaw, but forces the jaw to move bach` and forth as the rotatable element moves bach and forth, said jaw being apertnred transversely to the line of travel of the jaw to permit of the application of operating force therethrough to the rotating element, a gear Wheel movingv/ith the rotatable element, a second gear Wheel in mesh With the iirst and moving With the jaw and accessible to an operating tool insertible through the aperture in the jaw, the aXis of the second gear wheel being in vertical alinement with the aperture in the jaw, the plate-holding jaw having purchase upon the threaded element independently ot' the gear Wheels by reason of the engagement of said rotatable element with said threaded element, and a blocl; adapted to be inserted in a plate foundation andcarrying said threaded element and ailso supporting the traveling jaw in its trave A printing plate holder including a travelingplate-holding jaw, a threaded elef` ment extending substantially parallel With,- the direction of travel of the jaw, a rotatablel element in engagement with the threaded clement, whereby the rotatable element is caused to advance or recede, according to the direction of rotation of the rotatable ele.-

ment, in directions substantially parallell ivith the threaded element, said plate-holdgagement which p rmits the rotatablev ele# ment to turn' Wit rotatable element moves back and forth,

said ia'vv being apertured transversely to the i upon the threaded element independently of the gear Wheels by reason of the engagement of said rotatable-element With said threaded element, and a block adapted to be inserted in a plate foundation and carrying said threaded element and also supporting thev traveling aw in its travel.

A printing plate holder including a traveling plate-holding jaw, a threaded element, a rotatable element i1 x engagement and co-axial with the threa'led element,

whereby the rotatable element is caused tov advanceor recede, according to the direction ofzrotation of the rotatable e'ement, said ing jaw and rotatable element having en respect to the jaw, but forces the jaw t'o move back and forth as the late-holding jaw and rotatable elementl aving engagementwhich ermits the rotatable element to turn Wit .respect to the jaw, but forces the jaw to move back and forth as the rotatable element moves back and forth, said javv being apertured to permit of the application of operating force therethrough to the rotating element, a gear Wheel moving with the rotatable element andv co-axial therewith, and a second gearv Wheel in mesh with the first andmoving With the jaw and accessible to an operating tool insertible through the aperture in the javv, the axis of the second gear Wheel being 1nalinement With the aperture in the jaw, the plate-holding jaw having purchase u on the threaded element lindependently of; t e gear lWheels by reason of the engagement of said rotatable element with said threaded element.

24. A printing traveling plate-hol ing jaw, ment, a rotatable element in engagement With the threaded element,v whereby the late holder `including aI athreaded elerotatable element is caused to advance or recede, according to the direction of rotation oi the rotatable element, said plate-holding jawv and rotatable element having engage- -ment which permits thel rotatable element to turn .with res ect to the jaw, but forces the jaw to move ack and forth as' the rotatable. element moves back and forth, said jaw being apertured to permit of the' appli cation of operating force therethrough to the rotating element, a gear Wheel moving-*With the rotatable element and co-aXial therewith,

and a second gear Wheel 'in mesh with the l'irst and moving With the jaW and accessible;

to an operating tool insertible through the aperture in the jaw, the axis of the second gear Wheel-being in alinement with the aperture in the ja\v, 'the plate-holding jaw having purchase upon the threaded element independently of the gear'wheels by reason of the engagement ot' said rotatable element Withsaid threaded element. l' p 25. A printing plate holder linclu-ding a traveling plate-holding j a'W, a'threaded elemerit, a rotatable' element in engagement and co-aXial with the threaded element, whereby the rotatable' element isi-caused to advance or recede, accordinglto the direction of rotation of therotatab'le element", said plate holding jaw and rotatable element having c ngagement which permits the rotatable element to turn with respect to the jaw, but forces the jaw-to move back and forth as the r0ta table element movesl back '.and forth, vsaid jaw being'apertured to permit of the applica- ,tion of operating force therethroughto the rotating element, a gear Wheel moving With the rotatable element and co-axial therewith, a second gear Wheel in mesh Withlthe rst and moving With the jaw and accessible to an operating tool insertible through the l aperture in the jaw, the axis of the second gear wheel being in alineinent with the aperture in the jaw7 the plate-holdingjaw having purchase u on the threaded element independently oi' t e gear wheels by reason of the engagement of said rotatable element with. said threaded elementI and a block adapted to be inserted in the late foundation and carrying said threadei element and also supporting the traveling jaw in its travel.

'26. A printing iate holder including a traveling plate-hol ing jaw, a threaded. element, a rotatable element in engagement with the threaded element, whereby the rotatable element is caused to advance or recede, according to the direction of rotation of the rotatable element, said plate-holding jaw and rotatable element having engagement Whichperrnits the rotatable element to turn with res ect to the jaw, but iorees the jaw to :nove ack `and Jforth as the rotatable element moves back and joith, said jaw being apertured to permit of the application `of operating force therethrough to the rotating element, a gear wheel moving with th rota-table element and co-axiai there with, a second gear Wheel in rnesh with the first and moving with the j aw and accessiblev t'o an operating tool insertible through the aperture in the jaw, the axis of the second gear Wheel being in alinement with the aperture in the jaw, the plate-heiding jaw having purchase upon the threaded ele/nient independently of the gear Wheels by reason ol` the engagement et said rotatable element with said threaded element7 and a block adapted to be inserted in the plate foundation and carrying said threaded element and also supporting the traveling jaw in its travel.

27. A printing plate holder including a traveling plate-holding jaw, a gear element, a jawactuating element in engagement with said gear element and the plate-holding jaw, whereby as thevjaw-actuating element is moved with respect to said gear element7 the plate-holding Jaw is caused to advance or recede, a second gear element moving with the jaw-actuating element and a third gear element in engagement with the second gear element and moving with the jaw aud adapted to be operated by an operating toolJ the platediolding j aw having purchase upon the iirst gear element independently of the other gear elements by reason of Athe engagement oi' the jaw-actuating element with the irst gear eleinent.

In witness whereof, I hereunto subscribe my naine this third day ol' November, A. D.,

WILLIAM J. KNOLL. Witnesses G. L. CRAGG, L. G. Sinon. 

